Convicted killer of 4 Calif. officers found dead

DELANO, Calif. 
Authorities say an inmate convicted of killing four California Highway Patrol officers died over the weekend at Kern Valley State Prison in an apparent suicide.

Sixty-seven-year-old Bobby Augusta Davis was pronounced dead early Sunday morning after correctional officers found him unresponsive in his maximum-security single cell.

Davis was serving four consecutive life sentences for the April 6, 1970 murders of George Alleyn, Walt Frago, Roger Gore and James Pence. The "Newhall Incident" had been the deadliest for California law enforcement until the fatal shooting of four Oakland police officers in March.

Davis originally received the death penalty, but his sentence was commuted when the state's highest court banned capital punishment in 1972. Autopsy results are pending.